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A. HARRIS & G. MLGLARK.

LOGOMOTIMVE HEADLIGHT. No. 270,795. Patented Jan. 16,1883.

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UNITED STATES PATENT OFFICE.

ARTHUR HARRIS AND GEORGE CLARK, OF CHICAGO, ILLINOIS, ASSIGNORS TO J.MCGREGOR ADAMS, OF SAME PLACE.

LOCOMOTIVE HEAD-LIGHT.

SPECIFICATION forming part of Letters Patent No. 270,795, dated January16, 1888,

Application filed November 28, 1882. (No model.)

T 0 all whom it may concern Be it known that we, ARTHUR HARRIS andGEORGE M. CLARK, both of Chicago, in the county of Cook and State ofIllinois, have invented certain Improvements in Locomotive Head-Lights,of which the following is a specification.

This invention relates to means for displaying signals on locomotivehead-lights; and, briefly considered, it consists in illuminating aspace or chamber fixed above the rim, the latter being out where thebase of the chamber intersects and unites with it, the said chamberhaving inserted in its sides transparent signalplates bearing a numberor other mark.

- In the accompanyingdrawings, Figure 1 is a front view of our improvedhead-light. Fig. 2 is a side view of the same, partly in section.

Similar letters of reference indicate similar parts inboth-figures.

A is the outer case of the head-light or Iantern, and at its rim. Thetop of the rim is cut away at b, and at the opening thus made isattached a box, B, in each side of which, at its upper portion, isinserted a glass plate, 0, bearing a number or signal. It will beunderstood that the box is closed at all parts except at its base.

If desired, reflectors may be placed on the walls, within the box B, toenhance the illuminative client. The inner area of the rim a beingbrilliantly illuminated bythe lamp and main reflector, sufficient lightwill reach all the interior parts of the'box B and be shown through thetransparent plates 0.

The signal-glasses may be made adjustable for the interchange of colors.

This invention may be added to head-lights now in ordinary use.

We disclaim the invention described in Patent No. 225,299, granted March9, 1880, to Michael Nicholson, and also that in Patent No. 209,405,granted October 29, 1878, to W. Kelley, reissued February 18, 1879,under Nor 8,591, which patents 'cover a rim cut for the passage of lightto signal-glasses. Our invention is to be distinguished fromconstructions wherein the rim is cut in two places and a box bearing aglass is applied to each opening so made in the rim, our constructionallowing a signal to be exhibited ateach side of the train by lightthrown directly through a single opening in the rim.

We claim as our invention Combined with a locomotive head-light, a boxhaving its lower portion open and united with the perforated top of therim, said box having inserted in its sides transparent plates bearing asignal number or mark, substantially as set forth.

In testimony whereof we have hereunto set our hands and seals this 22dday of November, 1882.

ARTHURHARRIS. [L.s.| GEO. M. CLARK. [L s] Witnesses LAURENCE BROWN,OSBORNE SAMPsoN.

